<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="http://127.0.0.1:9500/test/userinfo" method="post" enctype="multipart/form-data">
  <div><input type="file" multiple="multiple" accept="image/*" name="photo"></div>
  <div><input type="submit" value="上传"></div>
</form>
</body>
</html>